Summary
Chapter 246-390 WAC, makes sure labs that test drinking water meet certain standards. It sets rules for labs that analyze drinking water samples. The rule aims to ensure safe drinking water and to protect public health.
For More Information
Statutory Authority: RCW 43.20.050
State Board of Health Contact: Shay Bauman, shay.bauman@sboh.wa.gov
Department of Health Contacts: Kseniya Efremova, kseniya.efremova@doh.wa.gov, and Mike Means, mike.means@doh.wa.gov
Additional Background
On October 13, 2021, the Board adopted amendments to chapter 246-390 WAC. In concurrent action, the Board adopted amendments to chapter 246-290 WAC, Group A Public Water Supplies. Among other features, the amended rules establish:
- drinking water standards for five per- and polyfluoroalkyl substances (PFAS) as State Action Levels (SALs);
- requirements for monitoring, recordkeeping, reporting, and other follow-up actions;
- criteria and procedures for adopting SALs and state Maximum Contaminant Levels (MCL); and
- laboratory analytical and reporting requirements that align the two rules.
The revised rules took effect January 1, 2022.
CR-101 filed on February 11, 2020 as WSR 20-05-032
CR-102 filed on August 3, 2021 as WSR 21-16-094
Cr-103 filed on November 17, 2021 as WSR 21-23-096
Related Links: Meeting Materials
2023
- June 14 Board Meeting
- May 19 Environmental Health Committee Special Meeting
2022
- December 19 Environmental Health Committee Special Meeting
- September 19 Environmental Health Committee Special Meeting
- August 10 Board Meeting
2021
- December 20 Environmental Health Committee Special Meeting
- October 18 Environmental Health Committee Special Meeting
- October 13 Board Meeting
- Rules Hearing Cover Memo
- Board Authority for Drinking Water Rulemaking
- Department of Health PFAS Group A Rules Presentation
- Group A CR-102 Package
- Group A Significant Analysis
- Group A Written Public Comments
- Group A Summary Response to Written Public Comments
- Factsheet, Summary of Group A Rule Revisions
- Factsheet, Department of Health Approach to Developing PFAS SALs
- Factsheet, SAL Monitoring and Follow-up Actions
- Factsheet, Process for SALs and State MCLs
- Lab PowerPoint Presentation
- Lab CR-102 Package
- Lab Significant Analysis
- Lab Written Public Comments
- Lab Summary Response to Public Comments
- Factsheet, Summary of Lab Rule Revisions
- Toxicology Assessment, PFAS SALs
- Board Meeting Minutes
- September 20 Environmental Health Committee Special Meeting
- July 19 Environmental Health Committee Special Meeting
- June 9 Board Meeting
- Drinking Water Standards Cover Memo
- Department of Health Presentation
- PFAS Overview
- PFAS Rule Summary
- Department of Health Approach Developing PFAS SALs
- Process/Criteria Adopting SALs and State MCLs
- PFAS Monitoring, Follow-up Actions, Public Notice
- PFAS Rulemaking Timeline
- Lab Rule Summary
- Statutory Authority
- Board Meeting Minutes
- May 17 Environmental Health Committee Special Meeting
2020
- October 21 Environmental Health Committee Special Meeting
- September 14 Environmental Health Committee Special Meeting
- August 12 Board Meeting
- July 16 Environmental Health Committee Special Meeting
- March 23 Environmental Health Committee Special Meeting
- February 14 Environmental Health Committee Special Meeting
2019
- November 18 Board Meeting
- November 7 Environmental Health Committee Special Meeting
